LONDON – A Criminal Court finding Thursday that London’s Metropolitan Police endangered public safety in the July 2005 shooting death of a Brazilian immigrant mistaken for a terrorist has set off a wave of calls for the force’s chief to resign.

The jury’s guilty verdict was aimed generally at the Metropolitan Police and did not single out individual officers. It also failed to satisfy police critics and the family of Jean Charles de Menezes, who said they await a full accounting of the incident.

More answers may come next week in an anticipated report from London’s Independent Police Complaints Commission.

During a monthlong trial, at London’s Central Criminal Court, the jury heard evidence from several officers involved in a surveillance operation stemming from an attempted attack on London’s subway system on July 21, 2005. That attempt had followed the July 7 bombing of London’s transport system that killed 52 people.

As they testified, some officers broke down when they recalled their actions in what has been characterized as an uncoordinated operation fraught with errors and misjudgments.

On July 22, 2005, anti-terror police and armed officers followed de Menezes, who was working as an electrician, mistaking him for Hussain Osman, leader of the failed July 21 bombings. As De Menezes entered the Stockwell subway station in South London, undercover officers believed he was a suicide bomber and jumped on him inside a train. They held him down and shot him in the head seven times.

London police faced 19 charges of failure to ensure public safety, brought by the Crown Prosecution Service, alleging a serious lack of planning, chaotic communications and failure to correctly identify a suspect.

In his summary, Judge Richard Henriques said it was a “corporate failure, not an individual failure” and imposed a $350,000 fine.

“This was very much an isolated breach brought about by quite extraordinary circumstances. One person died and many others were placed in potential danger,” he said.

In returning their verdict, jurors said their decision was one against the police as a body.

Speaking after the trial, Ian Blair, chief commissioner of British police, said he and his team would now “take time to consider whether and how any of our current operating practices need to be altered in the light of this conviction.”

Blair said de Menezes’ death was “a tragedy.”

“He was an innocent man,” Blair said. “The Metropolitan Police Service has apologized to the family and friends of Mr. de Menezes many times in the past. Once more, I express my deep regrets for his death.”

Blair added: “It is important to remember that no police officer set out that day to shoot an innocent man.”

His agency is unlikely to appeal the verdict, although that action has not been ruled out, Blair said.

Blair was pushed Thursday to fend off talk that he soon would resign.

“This case provides no evidence at all of systematic failure by the Metropolitan Police Service and I therefore intend to continue to lead the Met in its increasingly successful efforts to reduce crime . . .” he said.

Liberal Democrat Nick Clegg said: “On the back of such an overwhelming guilty verdict . . . Ian Blair’s position is simply untenable.”

De Menezes’ friends and relatives accepted the verdict but said they still want answers and more accountability.

Erionaldo da Silva, speaking on behalf of De Menezes’ family, issued a statement Thursday saying, “I have spoken to Jean’s mother, Maria, and she said nothing can bring Jean back, but she’s at least pleased that the men and the women of the jury have found the Metropolitan police guilty of the charge . . .

“We remain determined to ensure that the full truth about Jean’s death is made public and those responsible for his death are held accountable in a court of law,” da Silva said.

The family’s lawyer, Harriet Wistrich, told the BBC the verdict was “a start.”

Violent police encounters in California last year led to the deaths of 157 people and six officers, the state attorney general’s office said Thursday in a report that provides the first statewide tally on police use-of-force incidents.